INTRODUCES single vowel sounds using vowel diagram (vowel quadrangle); description of vowel articulation features, including rounding, closeness and place of articulation; expands concept of approximant articulation; compares  American English “regional” accents.
REVIEWS General terminology for phonetics: phonemes, phonetic super features, symbols, spelling, speech organs vocabulary.
Recommended tools: (Transparency)Speech Organs Diagram ; Vowel Symbol Chart